For most of human history, people were infected with helminths — parasitic worms — as a matter of course. It's only in the past century or so, in wealthy industrialized nations, that we've largely eliminated them. And it's in those same places that allergies, asthma, and autoimmune diseases have skyrocketed.
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We are all of us the living graves of extinct beasts, and often the beast stirs in us and utters some old, forgotten note that sends strange vibrations through the framework of our being.
Georg Christoph Lichtenberg — The Waste Books
We are all agreed that your theory is crazy. The question which divides us is whether it is crazy enough to have a chance of being correct.
Niels Bohr — Remark to Wolfgang Pauli at a lecture, Columbia University
We are beginning to see that to ask what is the use of science is as vulgar as to ask what is the use of a sunset, and almost as stupid.
John Desmond Bernal — The Social Function of Science